Publications de Florence Armand

Conditional essentiality of the 11-subunit complex I-like enzyme in strict anaerobes: the case of Desulfitobacterium hafniense strain DCB-2

Christof Holliger, Julien Maillard, Romain Hamelin, Mathilde Stéphanie Willemin, Florence Armand

In oxidative phosphorylation, respiratory complex I serves as an entry point in the electron transport chain for electrons generated in catabolic processes in the form of NADH. An ancestral version of the complex, lacking the NADH-oxidising module, is enco ...

Frontiers Media SA2024

Phosphoproteomics and morphology of stored human red blood cells treated by protein tyrosine phosphatases inhibitor

Gerardo Turcatti, Benjamin Rappaz, Romain Hamelin, Florence Armand

The process of protein phosphorylation is involved in numerous cell functions. In particular, phosphotyrosine (pY) has been reported to play a role in red blood cell (RBC) functions, including the cytoskeleton organization. During their storage before tran ...

2023

Resistance mechanism to Notch inhibition and combination therapy in human T-cell acute lymphoblastic leukemia

Freddy Radtke, Romain Hamelin, Nadine Fournier, Florence Armand, Maria Pavlou, Linlin Cao

Gain-of-function mutations in NOTCH1 are among the most frequent genetic alterations in T-cell acute lymphoblastic leukemia (T-ALL), highlighting the Notch signaling pathway as a promising therapeutic target for personalized medicine. Yet, a major limitati ...

2023

Proteome adaptations of the organohalide-respiring Desulfitobacterium hafniense strain DCB-2 to various energy metabolisms

Christof Holliger, Julien Maillard, Romain Hamelin, Mathilde Stéphanie Willemin, Florence Armand

IntroductionDesulfitobacterium hafniense was isolated for its ability to use organohalogens as terminal electron acceptors via organohalide respiration (OHR). In contrast to obligate OHR bacteria, Desulfitobacterium spp. show a highly versatile energy meta ...

Frontiers Media SA2023

Regulation of Src tumor activity by its N-terminal intrinsically disordered region

Romain Hamelin, Florence Armand

The membrane-anchored Src tyrosine kinase is involved in numerous pathways and its deregulation is involved in human cancer. Our knowledge on Src regulation relies on crystallography, which revealed intramolecular interactions to control active Src conform ...

SPRINGERNATURE2022

Small intestinal resident eosinophils maintain gut homeostasis following microbial colonization

Romain Hamelin, Florence Armand, Nicola Harris, Kathleen Shah, Mati André Marie Moyat

The intestine harbors a large population of resident eosinophils, yet the function of intestinal eosinophils has not been explored. Flow cytometry and whole-mount imaging identified eosinophils residing in the lamina propria along the length of the intesti ...

CELL PRESS2022

Hypoxic Incubation Conditions for Optimized Manufacture of Tenocyte-Based Active Pharmaceutical Ingredients of Homologous Standardized Transplant Products in Tendon Regenerative Medicine

Romain Hamelin, Florence Armand, Diego Chiappe

Human fetal progenitor tenocytes (hFPT) produced in defined cell bank systems have recently been characterized and qualified as potential therapeutic cell sources in tendon regenerative medicine. In view of further developing the manufacture processes of s ...

MDPI2021

Analysis of the S. pombe Meiotic Proteome Reveals a Switch from Anabolic to Catabolic Processes and Extensive Post-transcriptional Regulation

Viesturs Simanis, Andrea Krapp, Romain Hamelin, Diego Chiappe, Florence Armand, Lucien Fabrice Krapp, Marc Moniatte, Elena Cano

Meiotic progression in S. pombe is regulated by stage-specific gene expression and translation, changes in RNA stability, expression of anti-sense transcripts, and targeted proteolysis of regulatory proteins. We have used SILAC labeling to examine the rela ...

2019

Lysozyme-Induced Transcriptional Regulation of TNF-alpha Pathway Genes in Cells of the Monocyte Lineage

Paul Joseph Dyson, Romain Hamelin, Florence Armand, Isabelle Mireille Claude Schepens, Gianni Sava

Lysozyme is one of the most important anti-bacterial effectors in the innate immune system of animals. Besides its direct antibacterial enzymatic activity, lysozyme displays other biological properties, pointing toward a significant anti-inflammatory effec ...

2019

Phosphorylation of the VAR2CSA extracellular region is associated with enhanced adhesive properties to the placental receptor CSA

Romain Hamelin, Florence Armand, Marc Moniatte

Plasmodium falciparum is the main cause of disease and death from malaria. P. falciparum virulence resides in the ability of infected erythrocytes (IEs) to sequester in various tissues through the interaction between members of the polymorphic P. falciparu ...

2019